The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is seeking proposals for the repair of three units of NSN 7R1560014467869, 320-4-49753-101, TANK, FUEL, AIRCRAFT 2, intended for Foreign Military Sales to Switzerland. The procurement is competitive, primarily involving Reliance Aeroproducts International, Inc. and Performance Aircraft Services, Inc., but all responsible sources are encouraged to submit capability statements or proposals. The items are critical for maintaining aircraft operational readiness, and interested contractors must provide detailed submissions, including company information and repair capabilities, to the primary contact, Jeremy Barney, at jeremy.p.barney.civ@us.navy.mil, within 45 days of this notice. The government emphasizes that only approved sources will be considered for contract award, and the evaluation process will adhere to established guidelines for source approval.